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Finding the Fourth Proportional to 424,053.02, 584,718.16 and 397,148.82

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Solution

The fourth proportional to 424,053.02, 584,718.16 and 397,148.82 is: 547,620.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,053.02 : 584,718.16 = 397,148.82 : x
  2. Step 2: Convert to fraction form
    424,053.02/584,718.16 = 397,148.82/x
  3. Step 3: Cross multiply
    424,053.02x = 584,718.16 × 397,148.82
  4. Step 4: Simplify right side
    424,053.02x = 232,220,128,124.70
  5. Step 5: Solve for x
    x = 232,220,128,124.70/424,053.02
  6. Step 6: Final answer
    x = 547,620.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.